There are many correct "labels". Can be millennial or snowflakes or boomerang kids or extended adolescent depending on who is describing or in what context they are discussing the person in question. Those were not the terms used here as I remember. Problem is that they are describing a group of mostly men who either slowly transition from children to adults by being stuck in what was always assumed to be a short transitional phase or period. Think of 25 year olds moving back from college, living in their moms basement while they try to find themselves playing videos games or hanging out a chat rooms on the internet.